(19)
(11) EP 2 564 784 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.05.2013 Bulletin 2013/21

(43) Date of publication A2:
06.03.2013 Bulletin 2013/10

(21) Application number: 12182759.6

(22) Date of filing: 03.09.2012
(51) International Patent Classification (IPC): 
A61B 6/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 05.09.2011 JP 2011193190
05.09.2011 JP 2011193191

(71) Applicant: Fujifilm Corporation
Minato-ku Tokyo 106-8620 (JP)

(72) Inventors:
  • Kuwabara, Takeshi
    Kanagawa 258-8538 (JP)
  • Kamiya, Takeshi
    Kanagawa 258-8538 (JP)
  • Kitagawa, Yusuke
    Kanagawa 258-8538 (JP)

(74) Representative: Klunker . Schmitt-Nilson . Hirsch 
Patentanwälte Destouchesstrasse 68
80796 München
80796 München (DE)

   


(54) Radiographing system, method of controlling automatic exposure in radiographing system, and radiological image detection device


(57) A compensation circuit 76 of an AEC unit 67 of an electronic cassette 13 defines the detection signal of a detection pixel 65 of the electronic cassette 13 as a detection signal corresponding to the detection signal of an old AEC sensor 25. The compensation circuit 76 performs compensation so as to exclude the influence on the detection signal due to a difference in the configuration of an intermediate member disposed between an X-ray source 10 and an FPD 35 of the electronic cassette 13 when the detection pixel 65 is used as an AEC sensor instead of the old AEC sensor 25. The detection signal is transmitted from a detection signal I/F 80 to a detection signal I/F 26 of a source control device 11 as it is (instantaneous value) or as an accumulated value obtained using an integration circuit 77.







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